WO2018082486A1 - 一种铝端子和铜铝过渡连接器 - Google Patents
一种铝端子和铜铝过渡连接器 Download PDFInfo
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- WO2018082486A1 WO2018082486A1 PCT/CN2017/107579 CN2017107579W WO2018082486A1 WO 2018082486 A1 WO2018082486 A1 WO 2018082486A1 CN 2017107579 W CN2017107579 W CN 2017107579W WO 2018082486 A1 WO2018082486 A1 WO 2018082486A1
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- Prior art keywords
- aluminum
- copper
- terminal
- cavity
- powder
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 294
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 286
- 230000007704 transition Effects 0.000 title claims abstract description 115
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 112
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 229910052802 copper Inorganic materials 0.000 claims abstract description 91
- 239000010949 copper Substances 0.000 claims abstract description 91
- 238000003780 insertion Methods 0.000 claims abstract description 30
- 230000037431 insertion Effects 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 71
- 239000010410 layer Substances 0.000 claims description 29
- 239000011247 coating layer Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 23
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 230000001965 increasing effect Effects 0.000 description 8
- 238000002788 crimping Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000011324 bead Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
- H01R4/625—Soldered or welded connections
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- the present invention relates to an aluminum terminal assembled in a copper-aluminum transition connector of a motor vehicle and a copper-aluminum transition connector formed using the aluminum terminal.
- An electrical device in particular a power device for a motor vehicle, the terminal of which is usually made of copper, if the terminal is connected to an aluminum wire (the aluminum wire comprising a core and an insulating layer encasing the core), the core
- the main component is aluminum or aluminum alloy
- the contact resistance will be very large.
- a treated copper-aluminum connector or a copper-aluminum transition row is generally used.
- the Chinese utility model patent CN 203312469 U discloses a copper-aluminum joint mainly used for making a transitional connection between an electric device and an aluminum wire, the main connection comprising: an aluminum wire, an aluminum pipe, a copper terminal, wherein the aluminum wire
- the utility model comprises a wire harness and an insulating layer covering the outer bundle of the wire; the aluminum pipe is set on the aluminum wire, one end is located on the wire harness of the end of the aluminum wire to remove the insulating layer, and the other end is located on the adjacent insulating layer; the aluminum pipe
- the interior is stepped and the inner step faces match the end faces of the insulating layer.
- the aluminum-copper joint of such a structure does not limit the size of the aluminum tube, and the commonly used aluminum tube generally has a yield strength of about 30 MPa, so if the wall thickness of the aluminum tube is too thin when crimping the aluminum wire, It is easy to cause cracks in the aluminum tube or obvious cracks after the scratching, thus affecting the overall mechanical properties of the copper-aluminum joint.
- the wall thickness of the aluminum tube is too thick, the increased wall thickness has little improvement on the crimping performance, mechanical properties, and electrical performance of the product, and a large amount of aluminum material is required, which greatly increases the manufacturing cost.
- a first object of the present invention is to provide a An aluminum terminal that prevents cracks from occurring during the crimping process, which is advantageous for the cost of the manufactured product, and which can improve the electrical conductivity between itself and the aluminum wire.
- a second object of the present invention is to provide a copper-aluminum transition connector using the aluminum terminal.
- An aluminum terminal comprising an insertion cavity for inserting an aluminum wire, the insertion cavity including a first cavity having an inner diameter matching the outer diameter of the core of the aluminum wire, and an inner diameter and an insulation layer of the aluminum wire a second cavity matching the outer diameter; a rear end of the first cavity is connected to a front end of the second cavity; a minimum wall thickness of the insertion cavity is not less than 1/6 times the wall thickness of the insulating layer .
- the maximum wall thickness of the insertion cavity is no more than 18 times the wall thickness of the insulating layer.
- the inner wall of the connection position of the first cavity and the second cavity has a chamfered structure.
- the front end of the first cavity is provided with an opening.
- a conductive coating layer for conducting the core and the first cavity is disposed between the inner wall of the first cavity and the core.
- the conductive coating layer includes at least 15 wt% of the conductive portion and at most 85 wt% of the carrier portion.
- the conductive coating layer is mainly composed of 30 to 90% by weight of the conductive portion, and 10 to 70% by weight of the carrier portion.
- the conductive portion includes at least one of gold powder, silver powder, copper powder, aluminum powder, zinc powder, iron powder, cadmium powder, magnesium powder, lithium powder, tin powder, and nickel powder.
- the electrically conductive portion consists essentially of graphite powder.
- the carrier portion includes a resin matrix and a binder.
- the carrier portion further includes one or more of a crosslinking agent, a coupling agent, and a dispersing agent.
- a copper-aluminum transition connector includes a copper terminal and at least one of the above-described aluminum terminals; the copper terminal is fixed to a front end of the first cavity of the aluminum terminal.
- the copper terminal is soldered to the front end of the first cavity.
- the copper terminal is fixed on the front end of the first cavity by friction welding or electric resistance welding or laser welding or electron beam welding or pressure welding.
- the copper terminal has a hollow structure.
- connection surface of the copper terminal and the front end of the first cavity is a flat surface.
- connection surface of the copper terminal and the front end of the first cavity is a folded surface.
- the number of the aluminum terminals is at least two or more, the aluminum terminals are arranged in a row in the horizontal direction, and the side walls of the adjacent aluminum terminals are fixedly joined.
- the number of the aluminum terminals is at least two or more, the aluminum terminals are arranged in a line in the horizontal direction, and the adjacent aluminum terminals are spaced apart from each other.
- the copper terminal is a three-way structure; the number of the aluminum terminals is three; the first cavity front ends of the three aluminum terminals respectively correspond to the three end faces of the three-way structure, and the corresponding The front end of a cavity is fixedly connected to the corresponding end surface.
- the surface of the aluminum terminal of the present invention has obvious cracks, and the minimum wall thickness of the insertion cavity is set at the wall thickness of the insulating layer of the aluminum wire by 1/6 or 1/5 or 1/4 or When 1/3 or 1/2 or 1 or 2 or 3 ... or 15 times or 18 times or 20 times, the surface of the aluminum terminal of the present invention is free from cracks under the application of the same pressure. Therefore, the inventors believe that when the minimum wall thickness of the insertion cavity is set to at least 1/6 times the wall thickness of the insulating layer, the phenomenon that the aluminum terminal is broken when the aluminum wire is crimped can be effectively reduced.
- the minimum wall thickness of the insertion cavity is greater than or equal to a threshold value of 1/6 times the wall thickness of the insulating layer
- the copper-aluminum connector is formed with the copper terminal, the aluminum terminal and the aluminum wire can be connected.
- the impact strength at the location further ensures the electrical connection performance of both.
- the maximum wall thickness of the insertion cavity is not more than 18 times the wall thickness of the insulation layer, and the aluminum terminal can be saved under the premise that the aluminum terminal can meet the required electrical performance and the crimping performance requirement. production cost.
- the inner wall of the connecting cavity of the first cavity and the second cavity of the insertion cavity has a chamfered structure, and the chamfered structure can avoid obvious cracking of the aluminum terminal during extrusion, and can effectively avoid the right angle Indentations or friction marks on the core and insulation during compression to avoid affecting product performance.
- the conductive coating between the inner wall of the first cavity and the core not only improves the electrical contact between the inner wall and the core, but also excludes air and moisture between the inner wall and the core.
- Other impurities prevent the core from being oxidized, and reduce the resistance between the core and the aluminum terminal, and prevent the resistance between the core and the aluminum terminal from increasing due to oxidation, etc., thereby further improving the relationship between the aluminum wire and the aluminum terminal. Conductive properties.
- the conductive coating layer comprising at least 15% by weight of the conductive portion and up to 85% by weight of the carrier portion, which can effectively ensure the conductivity and the fluidity of the conductive coating layer.
- the conductive coating layer is mainly composed of 30-90 wt% of the conductive portion and 10-70 wt% of the carrier portion, and the proportion of the conductive portion of the component is between 30 and 90 wt%, which can more effectively ensure the aluminum wire and the aluminum terminal. Conductivity between.
- the conductive portion comprises at least one of gold powder, silver powder, copper powder, aluminum powder, zinc powder, iron powder, cadmium powder, magnesium powder, lithium powder, tin powder and nickel powder, so that the producer can
- the actual budget can flexibly adjust the composition of the conductive coating layer, for example, on the basis of satisfying the required conductivity, the use of the more expensive conductive metal powder can be appropriately reduced, thereby saving production costs.
- the conductive portion is mainly composed of graphite powder. Compared with the foregoing, metal powders such as gold powder, silver powder, copper powder, aluminum powder, zinc powder, iron powder, cadmium powder, magnesium powder, lithium powder, tin powder, and nickel powder are used as the conductive component, and the conductive portion can be remarkably lowered. Cost of production.
- the carrier portion comprises a resin matrix and a binder.
- the carrier portion further includes one or more of a crosslinking agent, a coupling agent, and a dispersing agent.
- the resin matrix can effectively bond the conductive portion, fill the void to prevent air, moisture and impurities from remaining between the first cavity and the core; the dispersant is used to help the conductive portion to be evenly distributed, and the adhesive is used for Increasing the adhesion between the carrier portion for increasing the overall strength and elasticity of the conductive coating layer, and the conductive agent for enhancing the mutual components of the conductive coating layer Combination.
- the copper-aluminum transition connector is obtained by friction-welding or resistance welding or laser welding or electron beam welding or pressure welding on the front end of the first cavity of the aluminum terminal, which can effectively avoid The primary battery reaction between copper and aluminum ensures the mechanical and electrical properties of the copper-aluminum transition connector.
- the copper terminal of the copper-aluminum transition connector has a hollow structure, which can effectively save the consumption of copper material under the premise of satisfying the necessary electrical conductivity, and is not only beneficial for reducing the copper-aluminum transition connector produced.
- the production cost is also beneficial to make the quality of the copper-aluminum transition terminal lighter.
- the connection surface between the copper terminal and the front end of the first cavity of the aluminum terminal is flat, when the welding is performed, the end faces of the copper and aluminum terminals are easily aligned, so that the welding is easy.
- the bonding effect between the copper and aluminum terminals is strong, and the welding quality problems such as welding beads and air holes are not easily generated, which not only greatly reduces the inferior rate, saves the production cost, but also helps to improve the copper-aluminum transition connector. Safety and reliability during use.
- the effective contact area of the copper terminal and the aluminum terminal is greatly increased to ensure good electrical conductivity. Performance, but also enhance the mechanical properties of copper and aluminum terminals when welding, reduce the contact resistance of copper and aluminum terminals.
- the use efficiency of the copper-aluminum connector can be significantly improved.
- the connector can be connected to multiple terminals on a large current load device such as a new energy vehicle, which saves space, saves cost, and improves assembly efficiency.
- FIG. 1 is a schematic view showing a connection structure of a first preferred embodiment of an aluminum terminal of the present invention and an aluminum wire;
- FIG. 2 is a schematic view showing the connection structure of a second preferred embodiment of the aluminum terminal of the present invention and an aluminum wire;
- FIG. 3 is a schematic view showing a connection structure of a third preferred embodiment of the aluminum terminal of the present invention and an aluminum wire;
- FIG. 4 is a schematic view showing a connection structure of a first preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 5 is a schematic view showing a connection structure of a second preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 6 is a schematic view showing the connection structure of the first structure and the aluminum wire of the third preferred embodiment of the copper-aluminum transition connector structure of the present invention.
- FIG. 7 is a schematic view showing a connection structure of a second structure of a third preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 8 is a schematic view showing a connection structure of a third structure and an aluminum wire of a third preferred embodiment of the copper-aluminum transition connector structure of the present invention.
- FIG. 9 is a schematic view showing a connection structure of a fourth structure of a third preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 10 is a schematic view showing a connection structure of a fourth preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 11 is a schematic view showing a connection structure of a fifth preferred embodiment of the copper-aluminum transition connector structure of the present invention and an aluminum wire;
- FIG. 12 is a schematic view showing the connection structure of the first structure and the aluminum wire of the sixth preferred embodiment of the copper-aluminum transition connector structure of the present invention.
- Figure 13 is a schematic view showing the connection structure of the second structure of the sixth preferred embodiment of the copper-aluminum transition connector structure and the aluminum wire of the present invention
- 15 is a schematic view showing the connection structure of the first structure and the aluminum wire of the eighth preferred embodiment of the copper-aluminum transition connector structure of the present invention.
- Figure 16 is a schematic view showing the connection structure of the second structure of the eighth preferred embodiment of the aluminum-copper transition connector structure of the present invention and the aluminum wire;
- 17 is a schematic view showing a connection structure of a ninth preferred embodiment of the aluminum-copper transition connector structure of the present invention and an aluminum wire;
- FIG. 18 is a schematic view showing a connection structure of a tenth preferred embodiment of the aluminum-copper transition connector structure of the present invention and an aluminum wire;
- 19 is a schematic view showing the connection structure of an eleventh preferred embodiment of the aluminum-copper transition connector structure of the present invention and an aluminum wire;
- Figure 20 is a schematic view showing the three-way structure in the twelfth preferred embodiment of the aluminum-copper transition connector structure of the present invention.
- Aluminum terminal structure 1 (right angle)
- FIG. 1 shows a first structure of an aluminum terminal 1 of the present invention, including a socket for inserting an aluminum wire 2, the insertion cavity including an inner diameter matching the outer diameter of the core 21 of the aluminum wire 2. a cavity 11 and a second cavity 12 having an inner diameter matching the outer diameter of the insulating layer 22 of the aluminum wire 2; a rear end of the first cavity 11 is connected to a front end of the second cavity 12; The minimum wall thickness H of the insertion cavity is not less than 1/6 times the thickness of the insulating wall.
- the insulating layer 22 at the front end of the aluminum wire 2 is first removed to expose the core 21, and then the aluminum wire 2 is inserted into the insertion cavity, and the exposed portion of the core 21 is located at the first
- the cavity 11 and a portion of the insulating layer 22 that has not been removed are located in the second cavity 12, and then a pressure of about 30 MPa is applied to the aluminum terminal 1, so that the aluminum terminal 1 and a portion of the aluminum wire 2 located inside thereof are realized. Pressed and fixed.
- the minimum wall thickness of the insertion cavity is set at the insulation layer thickness of the aluminum wire 1/7 or 1/8 or 1/9 or 1/ 10 or 1/11 or 1/12, the surface of the aluminum terminal of the present invention has obvious cracks, and the minimum wall thickness of the insertion cavity is set to 1/6 or 1/5 or 1/4 of the thickness of the insulating layer of the aluminum wire. Or 1/3 or 1/2 or 1 or 2 or 3 ... or 15 times or 18 times or 20 times, the surface of the aluminum terminal 1 of the present invention is free from cracks under the application of the same pressure. Therefore, when the minimum wall thickness of the cavity of the present invention is at least 1/6 of the wall thickness of the insulating layer, the phenomenon that the aluminum terminal 1 is broken when the aluminum wire 2 is crimped can be effectively reduced.
- the aluminum terminal 1 can be ensured when the copper-aluminum connector is formed with the copper terminal 3.
- the mechanical strength at the junction with the aluminum wire 2 further ensures the electrical connection performance of both.
- the aluminum terminal 1 shown in FIG. 1 has a uniform thickness due to the first cavity 11 and the second cavity 12, and the wall thickness of the first cavity 11 is greater than the wall thickness of the second cavity 12. Therefore, in the present structure, the minimum wall thickness H of the insertion cavity substantially means the minimum wall thickness of the second cavity 12 shown in FIG. Of course, for those skilled in the art, the understanding of the minimum wall thickness H of the insertion cavity should not be limited to the manner shown in FIG. 1 above, when the wall thickness of the first cavity 11 is equal to the wall of the second cavity 12.
- the minimum wall thickness H of the insertion cavity is the minimum wall thickness of the first cavity 11 or the minimum wall thickness of the second cavity 12;
- the minimum wall thickness H of the insertion cavity is the minimum wall thickness of the first cavity 11; or, when the first cavity
- the minimum wall thickness H of the cavity is understood to be the wall of both the first cavity 11 and the second cavity 12. The minimum value of the thickness.
- the manufacturing cost of the aluminum terminal 1 can be saved, and as a further improvement of the structure of the aluminum terminal 1, the maximum wall of the insertion cavity
- the thickness is not more than 18 times the wall thickness of the insulating layer 22 (i.e., the maximum wall thickness of the cavity is at most 18 times the wall thickness of the insulating layer 22).
- the first cavity 11 and the second cavity 12 have a rectangular cross section.
- the inner diameter of the first cavity 11 is slightly larger than the outer diameter of the aluminum wire core 21; the inner diameter of the second cavity 12 is slightly larger than the diameter of the core 21 and the wall thickness of the aluminum wire insulation layer 22 Sum.
- the core 21 is mainly composed of aluminum or an aluminum alloy, and the core 21 may be composed of one core wire or may be interwoven by a plurality of core wires.
- an inner wall of the first cavity 11 and the core 21 are provided for conducting the core 21 and the first cavity 11 .
- Conductive coating layer (not shown). Since the conductive coating layer is provided, not only the electrical contact between the inner wall of the first cavity 11 and the core 21 but also the air, moisture and other impurities between the inner wall and the core 21 can be eliminated.
- the wire core 21 is prevented from being oxidized, and the electric resistance between the wire core 21 and the aluminum terminal 1 is reduced, and the conductive coating layer also prevents the resistance between the wire core and the aluminum terminal from increasing due to oxidation or the like over time, and finally The purpose of further improving the electrical conductivity between the aluminum wire 2 and the aluminum terminal 1 is achieved.
- the conductive coating layer includes at least 15 wt% of the conductive portion and at most 85 wt% of the carrier portion.
- the conductive coating layer is mainly composed of 30-90wt.
- the conductive portion of %, and the carrier portion of 10-70% by weight.
- the carrier portion includes a resin matrix and a binder.
- the carrier portion further includes one or more of a crosslinking agent, a coupling agent, and a dispersing agent.
- the resin matrix can effectively combine the conductive portion, filling the gap to prevent air, moisture and impurities from remaining between the first cavity 11 and the core 21; the dispersant is used to help the conductive portion to be evenly distributed, the adhesive For enhancing the adhesion between the carrier portion and the conductive portion for increasing the overall strength and elasticity of the conductive coating layer, the coupling agent for enhancing the composition of the conductive coating layer The mutual interaction.
- the conductive portion includes at least gold powder, silver powder, copper powder, aluminum powder, zinc powder, iron powder, cadmium powder, magnesium powder, lithium powder, tin powder And one of the nickel powders.
- the following table shows the conductivity test data of conductive coatings formed by different kinds of metal powders at different ratios of conductive components:
- the conductive property is preferably a conductive coating layer formed when the metal powder is added in an amount of 100%, and the conductive property is the least conductive when the metal powder is added in an amount of 15%. Coating layer.
- metal powders aluminum powder, magnesium powder, zinc powder, cadmium powder, iron powder, tin powder and nickel powder are cheaper to use in the same amount of addition, but the magnesium powder is compared in air. Active, iron powder is easily oxidized and corroded in the air. The conductive properties of cadmium powder and tin powder are relatively low. Therefore, in the case of low production cost, aluminum powder, zinc powder or nickel powder is preferred as the conductive component; Among the copper powder, gold powder and lithium powder, the conductivity of the silver powder, the copper powder and the gold powder is better than that of the above metal powder, and the gold powder and the silver powder are chemically stable, but expensive, so it is not suitable for the occasion of low production cost.
- the conductivity is relatively general, the copper powder has good conductivity and the production cost is low. Therefore, in actual production, producers can flexibly adjust according to the actual budget.
- the specific composition of the conductive component of the conductive coating layer for example, on the basis of satisfying the required conductivity, can appropriately reduce the use of the more expensive conductive portion, thereby saving production costs.
- the conductive portion of the aluminum terminal structure is mainly composed of graphite powder.
- the following table is the conductivity test data of the conductive coating layer formed by graphite powder at different ratios of conductive components:
- the second preferred component of the conductive portion of the aluminum terminal structure uses graphite powder, and the conductive coating layer finally formed with the carrier portion can also achieve the corresponding conductive effect, but with the aforementioned use of gold powder, silver Metal powders such as powder, copper powder, aluminum powder, zinc powder, iron powder, cadmium powder, magnesium powder, lithium powder, tin powder, and nickel powder are slightly inferior in electrical conductivity as the first preferred component of the conductive portion.
- the production cost of the conductive portion formed is much lower than that of the first preferred component described above, and the production cost of the conductive portion can be remarkably reduced.
- FIG. 2 shows a second structure of the aluminum terminal of the present invention, which differs from the first structure shown in FIG. 1 in that the inner wall of the connection position of the first cavity 11 and the second cavity 12 is It has a chamfered structure 4.
- the chamfered structure 4 can not only effectively prevent the aluminum terminal 1 from appearing severe cracking when being pressed, but also avoid the indentation or friction caused by the right angle side shown in FIG. 1 on the core wire 21 and the insulating skin 22 during compression. Traces to avoid affecting product performance.
- the insulating layer 22 at the front end of the aluminum wire 2 is first removed to expose the core 21, and then the aluminum wire 2 is inserted into the insertion cavity.
- Fig. 3 shows a third structure of the aluminum terminal of the present invention, which differs from the second structure shown in Fig. 2 in that the front end of the first cavity 11 is provided with an opening.
- the core 21 in the aluminum wire 2 can be made to contact the copper terminal 3 through the opening so as to directly contact the copper terminal 3.
- the present invention also discloses a copper-aluminum transition connector formed using the aforementioned aluminum terminal structure.
- the specific structure of the copper-aluminum transition connector will be further described below.
- Copper-aluminum transition connector structure 1 (right angle + plane)
- first copper-aluminum transition connector structure of the present invention comprising a copper terminal 3 and at least one aluminum terminal 1 shown in FIG. 1, the copper terminal 3 being fixed to the first cavity of the aluminum terminal 1.
- the number of the aluminum terminals 1 is one.
- the copper terminal 3 is fixed to the front end of the first cavity 11 by friction welding or electric resistance welding or laser welding or electron beam welding or pressure welding.
- the primary battery reaction between copper and aluminum can be effectively avoided, and the mechanical properties and electrical properties of the copper-aluminum transition connector are ensured.
- connection surface of the copper terminal 3 and the front end of the first cavity 11 is a flat surface.
- the end faces of the copper and aluminum terminals are easily aligned, so that the welding is easy, and the bonding effect between the copper and aluminum terminals is strong, and the welding quality problems such as the welding beads and the air holes are not easily generated, and the welding quality is greatly reduced. Inferior rate, saving production costs, but also help improve the safety and reliability of copper-aluminum transition connectors in use.
- Copper-aluminum transition connector structure 2 (chamfer + plane)
- Figure 5 shows a second copper-aluminum transition connector structure of the present invention comprising a copper terminal 3 and at least one aluminum terminal 1 shown in Figure 2, the copper terminal 3 being fixed to the first cavity of the aluminum terminal 1 On the front end of the body 11.
- the number of the aluminum terminals 1 is one.
- the copper terminal 3 is fixed to the front end of the first cavity 11 by friction welding or electric resistance welding or laser welding or electron beam welding or pressure welding.
- the primary battery reaction between copper and aluminum can be effectively avoided, and the mechanical properties and electrical properties of the copper-aluminum transition connector are ensured.
- connection surface of the copper terminal 3 and the front end of the first cavity 11 is a flat surface.
- the end faces of the copper and aluminum terminals are easily aligned, so that the welding is easy, and the bonding effect between the copper and aluminum terminals is strong, and the welding quality problems such as the welding beads and the air holes are not easily generated, and the welding quality is greatly reduced. Inferior rate, saving production costs, but also help improve the safety and reliability of copper-aluminum transition connectors in use.
- Copper-aluminum transition connector structure 3 (chamfer + fold)
- the only difference between the third copper-aluminum transition connector structure of the present invention and the second copper-aluminum transition connector structure described in FIG. 5 is that the copper terminal 3 and the front end of the first cavity 11 are The connecting surface is a folded surface, which greatly increases the effective contact area of the copper terminal 3 and the aluminum terminal 1, ensures good electrical conductivity, and also enhances the mechanical properties of the copper and aluminum terminals during welding, and reduces the contact surface of the copper and aluminum terminals. resistance.
- the folded surface is V-shaped (as shown in FIG. 6), or the folded surface is inverted V-shaped (as shown in FIG. 7), or the folded surface is trapezoidal (As shown in Figure 8), or the folded surface is inverted trapezoidal (as shown in Figure 9).
- the folded surface may be any folded shape that can increase the effective contact area of the copper terminal 3 and the aluminum terminal 1 in addition to the aforementioned shape.
- Copper-aluminum transition connector structure 4 (opening + chamfering)
- Figure 10 shows a fourth copper-aluminum transition connector structure of the present invention comprising a copper terminal 3 and at least one aluminum terminal 1 shown in Figure 3, the copper terminal 3 being fixed to the first cavity of the aluminum terminal 1 On the front end of the body 11.
- the number of the aluminum terminals 1 is one.
- the copper terminal 3 is fixed to the front end of the first cavity 11 by friction welding or electric resistance welding or laser welding or electron beam welding or pressure welding.
- the connection surface of the copper terminal 3 and the front end outer wall of the first cavity 11 is a flat surface.
- Copper-aluminum transition connector structure 5 (hollow + opening)
- the fifth copper-aluminum transition connector structure of the present invention is mainly improved in that the copper terminals 3 of the first, second, third, and fourth copper-aluminum transition terminal connector structures are hollow.
- the structure is such that, under the premise of satisfying the necessary conductive performance, the consumption of copper material can be effectively saved, which not only helps to reduce the production cost of the obtained copper-aluminum transition connector, but also facilitates the copper-aluminum alloy.
- the quality of the transition terminals is lighter.
- the copper terminal 3 of the fourth copper-aluminum transition connector as a hollow structure as an example, as shown in FIG. 11, the rear end of the copper terminal 3 is further provided with a core 21 for the aluminum wire 2 to be worn. Enter the entrance 5 inside.
- Copper-aluminum transition connector structure 6 (hollow)
- the sixth copper-aluminum transition connector structure of the present invention is mainly improved in that the copper terminals 3 of the first, second, third, and fourth copper-aluminum transition terminal connector structures are hollow.
- the structure is such that, under the premise of satisfying the necessary conductive performance, the consumption of copper material can be effectively saved, which not only helps to reduce the production cost of the obtained copper-aluminum transition connector, but also facilitates the copper-aluminum alloy.
- the weight of the transition terminal is lightened, and the copper terminal 3 of the second and fourth copper-aluminum transition connectors is set as a hollow structure.
- the hollow structure is specifically configured to be Copper terminal 3
- the closed cavity 32 has a prismatic structure or a cylindrical structure or a cylindrical structure or a tapered structure of an elliptical cross section.
- Copper-aluminum transition connector structure 7 (multiple aluminum terminals + plane)
- a seventh copper-aluminum transition connector structure of the present invention comprising a copper terminal 3 and at least one aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG. 3, wherein the copper terminal 3 is fixed to the aluminum terminal 1 On the front end of a cavity 11.
- the number of the aluminum terminals 1 is two or more.
- the number of the aluminum terminals 1 is two, and the copper terminals 3 are subjected to friction welding or electric resistance welding or laser welding or electrons.
- a beam welding or pressure welding is attached to the front end of the first cavity 11.
- connection surface of the copper terminal 3 and the front end of the first cavity 11 of the two aluminum terminals 1 is a flat surface.
- the end faces of the copper and aluminum terminals are easily aligned, so that the welding is easy, and the bonding effect between the copper and aluminum terminals is strong, and the welding quality problems such as the welding beads and the air holes are not easily generated, and the welding quality is greatly reduced. Inferior rate, saving production costs, but also help improve the safety and reliability of copper-aluminum transition connectors in use.
- the number of the aluminum terminals 1 of the copper-aluminum transition connector structure is not limited to two, and may be a positive integer such as 3, 4, 5., etc., and the manufacturer can determine the aluminum terminal according to actual use requirements.
- the number of 1 is very flexible and convenient to use.
- the aluminum terminals may be all of the aluminum terminals 1 shown in FIG. 1, or all of the aluminum terminals 1 shown in FIG. 2, or all of the aluminum terminals 1 shown in FIG. It is also possible to freely combine in the aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG. 3 according to the specific number of aluminum terminals of the copper-aluminum transition connector structure required in the actual case.
- Aluminum-copper transition connector structure 8 (multiple aluminum terminals + folding surface)
- An eighth copper-aluminum transition connector structure of the present invention comprising a copper terminal 3 and at least one aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG. 3, wherein the copper terminal 3 is fixed to the aluminum terminal 1 On the front end of a cavity 11.
- the number of the aluminum terminals 1 is two or more.
- the copper terminal 3 is fixed to the front end of the first cavity 11 of the aluminum terminal 1 by friction welding or electric resistance welding or laser welding or electron beam welding or pressure welding.
- connection surface of the copper terminal 3 and the front end of the first cavity 11 of the aluminum terminal 1 is a folded surface, thereby greatly increasing the effective contact area of the copper terminal 3 and the aluminum terminal 1, and ensuring good electrical conductivity. Moreover, the mechanical properties of the copper and aluminum terminals during welding are enhanced, and the contact resistance of the copper and aluminum terminals is reduced.
- the folded surface is V-shaped, or the folded surface is inverted V-shaped, or as shown in FIG. 15, the folded surface is trapezoidal, or the folded surface is inverted The trapezoidal shape, or as shown in Fig. 16, the folded surface is shaped.
- the folded surface may be any folded shape that can increase the effective contact area of the copper terminal 3 and the aluminum terminal 1 in addition to the aforementioned shape.
- the number of aluminum terminals of the copper-aluminum transition connector structure is not limited to 2, and may be a positive integer such as 3, 4, 5, etc., the manufacturer can determine the number of the aluminum terminals according to actual use requirements, and use It is very flexible and convenient.
- the aluminum terminals may be all of the aluminum terminals 1 shown in FIG. 1 or all of the aluminum terminals 1 shown in FIG. 2, or all of them may be the aluminum terminals 1 shown in FIG.
- the specific number of aluminum terminals required for the copper-aluminum transition connector structure is freely combined in the aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG.
- Aluminum-copper transition connector structure 9 (multiple aluminum terminals + flat + aluminum terminal integration)
- Figure 17 is a ninth copper-aluminum transition connector structure of the present invention, which differs from the seventh copper-aluminum transition connector structure shown in Figure 14 in that the aluminum terminals 1 are arranged in the horizontal direction. In a row, the side walls of the adjacent aluminum terminals 1 are fixedly joined. Therefore, it is possible to weld the two or more aluminum terminals 1 to the copper terminals 3 at one time, and it is not necessary to weld the aluminum terminals 1 one by one to the copper terminals 3, which greatly improves the assembly efficiency.
- the number of the aluminum terminals 1 is preferably three. It should be noted that the number of the aluminum terminals 1 of the copper-aluminum transition connector structure is not limited to three, and may be a positive integer such as 2, 4, 5., etc., and the manufacturer can determine the aluminum terminal according to actual use requirements. The number of 1 is very flexible and convenient to use. Further, in the present configuration, the aluminum terminals may be all of the aluminum terminals 1 shown in FIG. 1, or all of the aluminum terminals 1 shown in FIG. 2, or all of the aluminum terminals 1 shown in FIG. It is also possible to freely combine in the aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG. 3 according to the specific number of aluminum terminals of the copper-aluminum transition connector structure required in the actual case.
- connection surface of the copper terminal 3 and the front end of the first cavity 11 of each of the aluminum terminals 1 is not limited to the plane shown in FIG. 17, but may also be FIG. And the fold shown in Figure 16.
- Aluminum-copper transition connector structure 10 (multiple aluminum terminals + plane + aluminum terminal split)
- Figure 18 shows a tenth copper-aluminum transition connector structure of the present invention, which is the same as that shown in Figure 17.
- the only difference between the nine copper-aluminum transition connector structures is that the aluminum terminals 1 are arranged in a row in the horizontal direction, and the adjacent aluminum terminals 1 are spaced apart from each other.
- Aluminum-copper transition connector structure 11 (multiple aluminum terminals + flat + partial aluminum terminals are split)
- Figure 19 shows the eleventh copper-aluminum transition connector structure of the present invention, which is characterized in that the ninth copper-aluminum transition connector structure shown in Figure 17 and the tenth copper-aluminum alloy shown in Figure 18 are shown.
- the transition connector structure is combined.
- the specific structure is that the aluminum terminals 1 are arranged in a row in a horizontal direction, wherein at least two aluminum terminal sidewalls are connected together to form a whole, and the other aluminum terminals 1 and other aluminum terminals 1 and The whole are all separated from each other.
- the number of the aluminum terminals 1 is preferably three. It should be noted that the number of the aluminum terminals 1 of the copper-aluminum transition connector structure is not limited to three, and may be a positive integer such as 4, 5, etc., and the manufacturer can determine the aluminum terminal 1 according to actual use requirements. The quantity is very flexible and convenient to use. Further, in the present configuration, the aluminum terminals may be all of the aluminum terminals 1 shown in FIG. 1, or all of the aluminum terminals 1 shown in FIG. 2, or all of the aluminum terminals 1 shown in FIG. It is also possible to freely combine in the aluminum terminal 1 shown in FIG. 1 or FIG. 2 or FIG. 3 according to the specific number of aluminum terminals of the copper-aluminum transition connector structure required in the actual case.
- Copper-aluminum transition connector structure 12 (three-way structure)
- the twelfth copper-aluminum transition connector structure of the present invention is mainly improved in that the copper terminal 3 is provided in a three-way structure, and as shown in FIG. 20, the three-way includes three end faces 31.
- the number of the aluminum terminals 1 is three; the front ends of the first cavities 11 of the three aluminum terminals respectively correspond to the three end faces 31 of the three-way structure, and the front ends of the corresponding first cavities 11 and the corresponding end faces 31 fixed connection.
- the electrical connection between the three aluminum terminals 1 can be realized under the premise of effectively saving the consumption of the copper material, which not only helps to reduce the production cost of the obtained copper-aluminum transition connector, but also facilitates the production cost of the copper-aluminum transition connector.
- the copper-aluminum transition terminal is lightweight.
- the three-way structure is preferably a three-way pipe.
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Abstract
Description
Claims (20)
- 一种铝端子,包括用于插接铝导线的插腔,所述插腔包括内径与所述铝导线的线芯外径相匹配的第一腔体,以及内径与所述铝导线的绝缘层外径相匹配的第二腔体;所述第一腔体的后端与第二腔体的前端相连接;其特征在于:所述插腔的最小壁厚不小于所述绝缘层壁厚的1/6倍。
- 如权利要求1所述的铝端子,其特征在于:所述插腔的最大壁厚不大于所述绝缘层壁厚的18倍。
- 如权利要求1所述的铝端子,其特征在于:所述第一腔体与第二腔体的连接位的内壁呈倒角状结构。
- 如权利要求1所述的铝端子,其特征在于:所述第一腔体的前端设有开口。
- 如权利要求1所述的铝端子,其特征在于:所述第一腔体的内壁与所述线芯之间设有用于导通所述线芯与第一腔体的导电涂覆层。
- 如权利要求5所述的铝端子,其特征在于:所述导电涂覆层包括至少15wt%的导电部分和以及至多85wt%的载体部分。
- 如权利要求6所述的铝端子,其特征在于:所述导电涂覆层主要由30-90wt%的导电部分,以及10-70wt%的载体部分组成。
- 如权利要求6或7所述的铝端子,其特征在于:所述导电部分至少包括金粉末、银粉末、铜粉末、铝粉末、锌粉末、铁粉末、镉粉末、镁粉末、锂粉末、锡粉末以及镍粉末中的一种。
- 如权利要求6或7所述的铝端子,其特征在于:所述导电部分主要由石墨粉组成。
- 如权利要求6或7所述的铝端子,其特征在于:所述载体部分包括树脂基体和黏合剂。
- 如权利要求10所述的铝端子,其特征在于:所述载体部分还包括交联剂、偶联剂和分散剂中的一种或两种以上。
- 一种铜铝过渡连接器,其特征在于:包括铜端子和至少一个如权利要求1-11任何一项所述的铝端子;所述铜端子固定在所述铝端子的第一腔体的前端上。
- 如权利要求12所述的铜铝过渡连接器,其特征在于:所述铜端子焊接 在所述第一腔体的前端上。
- 如权利要求13所述的铜铝过渡连接器,其特征在于:所述铜端子通过摩擦焊接或电阻焊接或激光焊接或电子束焊接或压焊方式固定在所述第一腔体的前端上。
- 如权利要求12所述的铜铝过渡连接器,其特征在于:所述铜端子呈空心状结构。
- 如权利要求12-15任何一项所述的铜铝过渡连接器,其特征在于:所述铜端子与所述第一腔体前端的连接面为平面。
- 如权利要求12-15任何一项所述的铜铝过渡连接器,其特征在于:所述铜端子与所述第一腔体前端的连接面为折面。
- 如权利要求12-15任何一项所述的铜铝过渡连接器,其特征在于:所述铝端子的数量至少为两个以上,所述铝端子沿水平方向排成一行,并且相邻的铝端子的侧壁固定相接。
- 如权利要求12-15任何一项所述的铜铝过渡连接器,其特征在于:所述铝端子的数量至少为两个以上,所述铝端子沿水平方向排成一行,并且相邻的铝端子相互隔开。
- 如权利要求12-15任何一项所述的铜铝过渡连接器,其特征在于:所述铜端子为三通结构;所述铝端子的数量为三个;所述三个铝端子的第一腔体前端分别对应所述三通结构的三个端面,并且对应的第一腔体前端与对应的端面固定相接。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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PL17867440.4T PL3537545T3 (pl) | 2016-11-04 | 2017-10-25 | Zespół aluminiowych końcówek i miedziano-aluminiowy łącznik przejściowy |
EP17867440.4A EP3537545B1 (en) | 2016-11-04 | 2017-10-25 | Aluminum terminal assembly and copper-aluminum transition connector |
CA3042116A CA3042116C (en) | 2016-11-04 | 2017-10-25 | Aluminum terminal and copper-aluminum transition connector |
ES17867440T ES2955835T3 (es) | 2016-11-04 | 2017-10-25 | Conjunto de terminales de aluminio y conector de transición de cobre aluminio |
MYPI2019002409A MY189681A (en) | 2016-11-04 | 2017-10-25 | Aluminum terminal and copper-aluminum transition connector |
RS20230853A RS64616B1 (sr) | 2016-11-04 | 2017-10-25 | Sklop aluminijumskih terminala i bakar-aluminijum prelazni konektor |
US16/346,113 US10707591B2 (en) | 2016-11-04 | 2017-10-25 | Aluminum terminal and copper-aluminum transition connector |
JP2019544964A JP7203740B2 (ja) | 2016-11-04 | 2017-10-25 | アルミ端子及び銅アルミトランジションコネクタ |
MX2019004934A MX2019004934A (es) | 2016-11-04 | 2017-10-25 | Terminal de aluminio y conector de transicion cobre-aluminio. |
ZA201902678A ZA201902678B (en) | 2016-11-04 | 2019-04-29 | Aluminum terminal and copper-aluminum transition connector |
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CN201610966186.5A CN106450868B (zh) | 2016-11-04 | 2016-11-04 | 一种铝端子和铜铝过渡连接器 |
CN201610966186.5 | 2016-11-04 |
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WO2018082486A1 true WO2018082486A1 (zh) | 2018-05-11 |
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PCT/CN2017/107579 WO2018082486A1 (zh) | 2016-11-04 | 2017-10-25 | 一种铝端子和铜铝过渡连接器 |
Country Status (13)
Country | Link |
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US (1) | US10707591B2 (zh) |
EP (1) | EP3537545B1 (zh) |
JP (1) | JP7203740B2 (zh) |
CN (1) | CN106450868B (zh) |
CA (1) | CA3042116C (zh) |
ES (1) | ES2955835T3 (zh) |
HU (1) | HUE063252T2 (zh) |
MX (1) | MX2019004934A (zh) |
MY (1) | MY189681A (zh) |
PL (1) | PL3537545T3 (zh) |
RS (1) | RS64616B1 (zh) |
WO (1) | WO2018082486A1 (zh) |
ZA (1) | ZA201902678B (zh) |
Cited By (1)
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CN110137709A (zh) * | 2019-05-31 | 2019-08-16 | 苏州腾晖光伏技术有限公司 | 一种光伏组件功率测试连接线工装装置 |
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CN106450868B (zh) | 2016-11-04 | 2019-03-26 | 吉林省中赢高科技有限公司 | 一种铝端子和铜铝过渡连接器 |
CN206893815U (zh) | 2017-06-05 | 2018-01-16 | 吉林省中赢高科技有限公司 | 一种铜铝连接器 |
KR101951732B1 (ko) * | 2018-08-06 | 2019-03-04 | 두성산업 주식회사 | 측면 접촉이 가능한 기판 표면 실장용 도전성 접촉단자 및 그 제조방법 |
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EP3537545A1 (en) | 2019-09-11 |
US10707591B2 (en) | 2020-07-07 |
JP7203740B2 (ja) | 2023-01-13 |
US20190260145A1 (en) | 2019-08-22 |
ES2955835T3 (es) | 2023-12-07 |
EP3537545B1 (en) | 2023-08-23 |
MY189681A (en) | 2022-02-25 |
PL3537545T3 (pl) | 2024-01-03 |
EP3537545A4 (en) | 2020-02-26 |
JP2019533895A (ja) | 2019-11-21 |
ZA201902678B (en) | 2019-11-27 |
CA3042116C (en) | 2021-06-15 |
CN106450868B (zh) | 2019-03-26 |
RS64616B1 (sr) | 2023-10-31 |
CN106450868A (zh) | 2017-02-22 |
EP3537545C0 (en) | 2023-08-23 |
HUE063252T2 (hu) | 2024-01-28 |
MX2019004934A (es) | 2019-08-26 |
CA3042116A1 (en) | 2018-05-11 |
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